Abstract: The facticity and authenticity of the geological data is attributed to its aboriginality,which has become a difficult issue badly in need of solution.In this paper,based on the review of development history and present status for the work of ensuring the data aboriginality in China,three different aboriginality assurance technologies contains the credible time stamp,the digital signature and the MD5 hash algorithm had been used and compared with each other in the collection of geological date.Finally,the MD5 hash algorithm proved that has the advantage of simple to operation,economical and free of burden in verification of geological data aboriginality.But due to the confidentiality and the complexity of data formats for geological data such as reason,the MD5 hash algorithm still need to be further improved.